Deployment has been hampered by internal roadblocks that are preventing significant progress from being made.

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Network virtualization is currently garnering plenty of interest and excitement as the future for the communications sector, with Software-Defined Networks (SDN) and Network Function Virtualization (NFV) being seen as key to tackling a range of issues.

Both offer multiple benefits - such as increased network agility, shorter time to market and the creation of new services and revenue streams – which can help network operators and Communication Service Providers (CSP) meet the growing demands being placed on them.

However, despite these promises, deployment has been hampered by internal roadblocks that are preventing significant progress from being made.

Challenges have proven to be more difficult to overcome than many in the industry expected, and factors such as technical immaturity and operational concerns mean there is still a long way to go before critical network functions start to become fully virtualized.

But the key barriers to progress are largely human in nature, consisting of an industry-wide skills shortage and outdated organizations and company cultures that are geared towards legacy technologies.

Draining the talent pool

Operators and CSPs are finding that there are not enough people with the relevant skills and practical experience both in-house and entering the industry, resulting in a growing skills gap.

Virtualization and cloud network functions require new skills which are currently in short supply. This is holding businesses back on their transformation journeys, as the technical intricacies of managing the technology cannot be effectively addressed.

A lack of internal expertise is augmented by recruitment woes. Traditional operators are facing increasingly stiff competition for new talent, with graduates more attracted to high-profile tech companies such as Google and Amazon.

So, what can businesses do to counter these issues? In the short term, CSPs are turning to vendors, consultancy firms and managed service providers for external advice and support. This support has proven invaluable for those organizations currently struggling to get their NFV/SDN projects off the ground.

Long-term, operators highlight the need to retrain their current workforces by equipping existing employees with the technical skills needed to operate in a virtualized network environment, with a special focus being given to in-house system admin and software development skills.

Operators will have to find ways of incentivising staff to develop their skillsets – something which many are already doing. However, the bigger task is not only revamping recruitment processes to target people familiar with cloud technologies, but elevating the image of CSPs to attract the top talent.

Conflicting cultures

As well as a shortage of talent, progress is also being hampered by embedded cultures and mindsets that have been slow to adapt to technological change.

For example, virtualization means that many operators need to change their organizational structure and bring business units closer together, such as IT and Networks - as well as Engineering and Operations – to be able to maintain existing physical networks alongside new virtualized infrastructure.

However, this is easier said than done. Often, existing knowledge of cloud platforms sits within a CSP’s IT team. Network departments in many CSPs have been unwilling to hand control over to IT teams, putting the trust factor at the heart of an internal cultural struggle.

Furthermore, during the transition from vertical silos to horizontal functions, there can be a lack of accountability and responsibility across departments. Many businesses are still lacking a clear structure to define these concepts, resulting in traditional separations between areas of responsibility becoming temporarily blurred.

But it’s something that needs to happen if the benefits of NFV/SDN are to be realised. Virtualization requires a multi-disciplinary approach and different departments need to be able to work together to achieve their organization’s strategic aims.

Operators are starting to realise that, when it comes to NFV/SDN adoption, the importance of having the right internal culture shouldn’t be underestimated and is central to leveraging the opportunities offered by network virtualization.

A virtual future

Despite the presence of these skills and culture challenges that are hindering deployment, virtualization is undoubtedly the future of communications.

People with the right skills, who are able to adapt and work together – indeed, even more closely together than before – are essential to the technology’s future success and achieving its vast promise.

The key for CSPs, therefore, is to strike the right balance between a technology and people focus when managing the change. Technological investment won’t be an issue, but ensuring adequate investment in people could be the difference between those operators that lead the way in the future of virtualized networks and those that find themselves falling behind their competitors.